Estimation of Spawning Season Based on the Ovulated Barfin Flounder Caught in Pacific Coast of Hokkaido.
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概要
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Barfin flounder, <I>Verasper moseri</I>, is one of the most endangous fish species in Japan. Since its biological features have hardly been known, such study is urgent. Two fish with ovulated eggs were captured in Akkeshi and Samani of pacific coast of Hokkaido in June 1994 and 1998, respectively. The latter had an enlarged belly dribbling many transparent and opaque eggs; the former had a slackened belly dribbling a small amount of transparent eggs being at the state of right after spawning. This study showed that the barfin flounder could also spawn from spring to early summer in addition to the reported winter. Furthermore, the depths where these fish captured suggested that barfin flounder may spawn at about 35 to 70 m in depth.
- 日本水産増殖学会の論文
日本水産増殖学会 | 論文
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